Surface sealing in the Mississippi Delta typically occurs in soils that have a low clay and organic matter content but have a high silt fraction, i.e., most of our silt loam soils. Surface sealing, from an irrigation management standpoint, is problematic because it can drastically reduce rainfall or irrigation infiltration rates. Following is a list of . . . → Read More: Identification of Sealing Soils
Last week Dr. Eric Larson wrote an excellent article dealing with corn irrigation initiation. At that time, a few growers had already begun to irrigate. Dr. Larson stressed the importance of accurately assessing soil moisture verses leaf wilting when determining irrigation initiation. The role of soil moisture sensors in determining when to initiate irrigation is proving . . . → Read More: Moisture Sensor’s Role in Irrigation Initiation.
The recent stretch of dry weather has prompted much conversation about the proper time to initiate irrigation for corn. This scenario usually generates a lot more anxiety than necessary because early season wilting is certainly not something we are very accustomed to. . . . → Read More: When Should I Start Irrigating My Corn?
As of today, some North Delta growers have received a much needed shower of rain. Elsewhere, growers are beginning to prepare for that first irrigation event. Installation of moisture sensors to aid in irrigation timing should be installed prior to laying of the poly-pipe.
Pre-conditioning of the Watermark sensors is a must!
Watermark sensors must be pre-conditioned prior . . . → Read More: Pre-conditioning of Watermark Sensors, a must do!
Mississippi State University Extension is in the process of planning two soil moisture sensor field days for Summer 2015. Attendee will view demonstrations and presentations of the agronomic advantages of utilizing soil moisture sensors to trigger row crop irrigation presented by Dr. Jason Krutz, MSU Irrigation Specialist. Manufactures and distributor sales representatives will present short presentations . . . → Read More: Soil Moisture Sensor Field Days
This is a video showing the methods used to determine the vegetative growth stages of corn or sorghum in the field. Further information can be found in the accompanying Mississipp Crop Situation blog article. . . . → Read More: Video – How to Identify Corn Vegetative Growth Stages
Vegetative growth stages of corn or sorghum are determined by counting the number of fully emerged leaves with leaf collars present. This methodology can be used to anticipate growth and determine appropriate timing of many management decisions, including herbicide application, sidedress fertilizer, etc…. . . . → Read More: How to Determine Growth Stages of Young Corn or Sorghum
Over the last few weeks we have received numerous calls about brown stink bugs in seedling corn in the Delta region of the state. Stink bugs attack corn by feeding through the stem or even down in the whorl of small corn plants. Typically the area where they feed becomes chlorotic due to enzymes in their saliva. . . . → Read More: Managing Stink Bugs in Seedling Corn
Abundant spring rainfall can create havoc with corn nitrogen management by delaying fertilizer application and also promote massive nitrogen loss. These strategies should help enhance crop response during challenging conditions. . . . → Read More: Use a Sound Corn Nitrogen Strategy to Combat Rainy Weather
For the most part the Mississippi wheat crop is clean with regards to foliar diseases. However, some important issues are occurring that need to be addressed with regards to Fusarium head blight, stem maggot feeding, and general herbicide injury as these three issues can easily be confused with one another at the field level. . . . → Read More: Wheat Disease Update: April 24, 2015